Optimising Resource Efficiency in Future Mobile Communications
Lead Research Organisation:
University of Southampton
Department Name: Electronics and Computer Science
Abstract
Mobile communication systems are becoming more and more complex to design (by researchers), operate (by the operators) and used by the people in the street. Mobile users now wish to be always connected, irrespective of time and place, and have access to a range of new services to help him/her in everyday life, all at the lowest possible cost. Currently no one knows how to evaluate whether a system is efficient or not in such provision. The reason for this is the huge number of parameters involved which collectively influence system efficiency. So far the practice has been to use a subset of such parameters to define localised efficiency -- but this does not provide overall efficiency and it will not lead to low cost or optimum use of scare spectrum. There are three important criteria which need to be considered and designed together to achieve a highly efficient mobile system. These are: quality of offered service, capacity and the cost of the system. Each of these criteria are influenced by a large number of parameters individually, where each have different weightings. Optimum design needs to find a fine balance between the three different criteria and yet currently there is no technique available which enables them to be optimised together to provide the required low cost solution. What makes this difficult is that a mobile system is dynamic by nature in terms of: range of mobility of users, wide range of operational environments, wide range of services with different bit rates and expected qualities, etc. This all points to requirements for a system with a certain degree of adaptability so that the system can self-organise and adapt itself to changing conditions. Currently systems are designed and operated on more or less fixed technique and parameters. These include the design of air-interface, media access control, handover algorithms, cell sizes and fixed frequency band allocation which all lead to wastage of resources and expensive solutions. The mobile systems of the future, addressed herein, are continuously adaptable and reconfigurable and respond automatically to the conditions of environments and user demands. It is only by engaging with these factors that efficiency can be maximised and the required low cost new services can be delivered to users. The challenge of the research described herein is how to collectively design such very complex networks so that users, service providers and network operators will all consider it efficient and cost effective to participate in the mobile vision of the future.
People |
ORCID iD |
| Lajos Hanzo (Principal Investigator) |
Publications
How H
(2006)
A Redundant Residue Number System Coded Burst-by-Burst Adaptive Joint-Detection Based CDMA Speech Transceiver
in IEEE Transactions on Vehicular Technology
Sheng Chen
(2006)
Minimum bit-error rate design for space-time equalization-based multiuser detection
in IEEE Transactions on Communications
Liew T
(2006)
Systematic Redundant Residue Number System Codes: Analytical Upper Bound and Iterative Decoding Performance Over AWGN and Rayleigh Channels
in IEEE Transactions on Communications
Tee R
(2006)
Multilevel generalised low-density parity-check codes
in Electronics Letters
Jiang M
(2006)
Hybrid Iterative Multiuser Detection for Channel Coded Space Division Multiple Access OFDM Systems
in IEEE Transactions on Vehicular Technology
Chen S
(2006)
MBER Space-Time Decision Feedback Equalization Assisted Multiuser Detection for Multiple Antenna Aided SDMA Systems
in IEEE Transactions on Signal Processing
Kliewer J
(2006)
Efficient Computation of EXIT Functions for Nonbinary Iterative Decoding
in IEEE Transactions on Communications
Liew T
(2006)
Space-Time Trellis and Space-Time Block Coding Versus Adaptive Modulation and Coding Aided OFDM for Wideband Channels
in IEEE Transactions on Vehicular Technology
Jiang M
(2006)
Multiuser MIMO-OFDM systems using subcarrier hopping
in IEE Proceedings - Communications
Liu X
(2006)
Exact BER of rectangular-constellation QAM subjected to asynchronous co-channel interference and Nakagami-m fading
in Electronics Letters
Wei H
(2006)
Downlink Space-Time Spreading Using Interference Rejection Codes
in IEEE Transactions on Vehicular Technology
Hua Wei
(2006)
On the performance of band-limited asynchronous DS-CDMA over nakagami-m channels
in IEEE Transactions on Wireless Communications
Soon Xin Ng
(2006)
Burst-by-burst adaptive decision feedback equalized TCM, TTCM, and BICM for H.263-assisted wireless video telephony
in IEEE Transactions on Circuits and Systems for Video Technology
Mohamad H
(2006)
Performance limitation of subband adaptive equalisers
in Electronics Letters
Wolfgang A
(2006)
Iterative MIMO Detection for Rank-Deficient Systems
in IEEE Signal Processing Letters
Vanichchanunt P
(2006)
Noise Correlation-Aided Iterative Decoding for Magnetic Recording Channels
Yang L
(2006)
Multiuser Detection Assisted Time- and Frequency-Domain Spread Multicarrier Code-Division Multiple-Access
in IEEE Transactions on Vehicular Technology
Hua Wei
(2006)
On the uplink performance of LAS-CDMA
in IEEE Transactions on Wireless Communications
Soon Xin Ng
(2006)
On the MIMO Channel Capacity of Multidimensional Signal Sets
in IEEE Transactions on Vehicular Technology
Lee K
(2007)
Optimal Lattice-Reduction Aided Successive Interference Cancellation for MIMO Systems
in IEEE Transactions on Wireless Communications
Akhtman J
(2007)
An Optimized-Hierarchy-Aided Approximate Log-MAP Detector for MIMO Systems
in IEEE Transactions on Wireless Communications
El-Hajjar M
(2007)
Layered steered space-time codes and their capacity
in Electronics Letters
Akhtman J
(2007)
Decision Directed Channel Estimation Aided OFDM Employing Sample-Spaced and Fractionally-Spaced CIR Estimators
in IEEE Transactions on Wireless Communications
Ng S
(2007)
Iteratively Decoded Variable Length Space-Time Coded Modulation: Code Construction and Convergence Analysis
in IEEE Transactions on Wireless Communications
Dohler M
(2007)
Implementable wireless access for B3G networks. III. Complexity reducing transceiver structures [Topics in Radio Communications]
in IEEE Communications Magazine
Ni S
(2007)
Adaptive Beamforming and Adaptive Modulation-Assisted Network Performance of Multiuser Detection-Aided FDD and TDD CDMA Systems
in IEEE Transactions on Vehicular Technology
Won S
(2007)
Differentially coherent code acquisition in the MIMO-aided multi-carrier DS-CDMA downlink
in IET Communications
Liu X
(2007)
A Unified Exact BER Performance Analysis of Asynchronous DS-CDMA Systems Using BPSK Modulation over Fading Channels
in IEEE Transactions on Wireless Communications
Jiang M
(2007)
Iterative Joint Channel Estimation and Multi-User Detection for Multiple-Antenna Aided OFDM Systems
in IEEE Transactions on Wireless Communications
Jiang M
(2007)
Multiuser MIMO-OFDM for Next-Generation Wireless Systems
in Proceedings of the IEEE
Alamri O
(2007)
A Turbo Detection and Sphere-Packing-Modulation-Aided Space-Time Coding Scheme
in IEEE Transactions on Vehicular Technology
Wolfgang A
(2007)
Reduced-Complexity Near-Maximum-Likelihood Detection for Decision Feedback Assisted Space-Time Equalization
in IEEE Transactions on Wireless Communications
Liu W
(2007)
Joint channel prediction aided differentially encoded TTCM and BICMID assisted eigen-beamforming
in Electronics Letters
Liu X
(2007)
Analytical bit error rate performance of DS-CDMA ad hoc networks using large area synchronous spreading sequences
in IET Communications
Hanzo L
(2007)
Enabling the Wireless Internet - Myths and Challenges
Won S
(2007)
Non-Coherent Code Acquisition in the Multiple Transmit/Multiple Receive Antenna Aided Single- and Multi-Carrier DS-CDMA Downlink
in IEEE Transactions on Wireless Communications
Ahmed S
(2007)
Erasure Insertion in RS-Coded SFH MFSK Subjected to Tone Jamming and Rayleigh Fading
in IEEE Transactions on Vehicular Technology
Jiang M
(2007)
Soft-Information Assisted Near-Optimum Nonlinear Detection for BLAST-type Space Division Multiplexing OFDM Systems
in IEEE Transactions on Wireless Communications
El-Hajjar M
(2007)
Coherent and Differential Downlink Space-Time Steering Aided Generalised Multicarrier DS-CDMA
in IEEE Transactions on Wireless Communications
Y Akhtman
(2007)
Projection Approximation Subspace Tracking-Aided Channel Estimation for MIMO-OFDM
in IEEE Transactions on Wireless Communications
Akhtman J
(2007)
Channel Impulse Response Tap Prediction for Time-Varying Wireless Channels
in IEEE Transactions on Vehicular Technology
Hanzo L
(2007)
Near-Instantaneously Adaptive HSDPA-Style OFDM Versus MC-CDMA Transceivers for WIFI, WIMAX, and Next-Generation Cellular Systems
in Proceedings of the IEEE
Wolfgang A
(2007)
Parallel interference cancellation based turbo space-time equalization in the SDMA uplink
in IEEE Transactions on Wireless Communications
Maunder R
(2007)
Joint Iterative Decoding of Trellis-Based VQ and TCM
in IEEE Transactions on Wireless Communications
Hanzo L
(2007)
Turbo Decoding and Detection for Wireless Applications
in Proceedings of the IEEE
Chen S
(2007)
Space-time decision feedback equalisation using a minimum bit error rate design for single-input multiple-output channels
in IET Communications
Chen S
(2007)
Clustering-Based Symmetric Radial Basis Function Beamforming
in IEEE Signal Processing Letters
Shuang Tan
(2008)
Iterative Multiuser Minimum Symbol Error Rate Beamforming Aided QAM Receiver
in IEEE Signal Processing Letters
| Description | Numerous sophisticated transmission and reception schemes were conceived, including multi-user detectors, Interleave Division Multiple Access (IDMA) schemes, Multi-user transmitters, sphere-decoders, etc; |
| Exploitation Route | They have been exploited by the 20 or so companies of the Mobile Virtual Centre of Excellence (MVCE) and by the academic community through our publications and books; |
| Sectors | Aerospace Defence and Marine Creative Economy Education Electronics Healthcare Transport |
| URL | httP://www-mobile.ecs.soton.ac.uk |
| Description | The companies of the MVCE created mobile phone products; |
| First Year Of Impact | 2006 |
| Sector | Aerospace, Defence and Marine,Creative Economy,Digital/Communication/Information Technologies (including Software),Education,Electronics,Transport |
| Impact Types | Cultural Societal Economic |
| Description | European Union Framework 7 |
| Amount | £240,000 (GBP) |
| Funding ID | Concerto propject |
| Organisation | European Commission |
| Department | Seventh Framework Programme (FP7) |
| Sector | Public |
| Country | European Union (EU) |
| Start | 02/2012 |
| End | 12/2014 |
| Description | VCE Mobile & Personal Comm Ltd |
| Organisation | VCE Mobile & Personal Comm Ltd |
| Country | United Kingdom |
| Sector | Private |
| Start Year | 2006 |